导弹尾焰的可视化仿真研究与实现  

Study and Realization of Visual Simulation of Missile Plume

作　　者：朱宏玮[1] 姜国华[1] 王宝智[1] 

机构地区：[1]中国航天员科研训练中心,北京100094

出　　处：《计算机仿真》2008年第2期29-32,共4页Computer Simulation

摘　　要：为了对导弹尾焰进行逼真模拟,给出了一种有效的方法。首先,采用了三角函数对轮廓近似;其次,结合粒子系统对动态性和不规则性模拟;再次,使用粒子速度矢量切平面作为纹理映射平面并将其按照沿X轴环行分布,解决了二维纹理映射三维观察逼真性问题;最后,引入粒子发射盘并对速度分段增强了层次感。此外还采用圆形图案作为粒子纹理和通过火焰燃烧特性建立颜色映射方式等技术。采用了OpenGL平台实现了该方法,并与其它方法进行了对比,验证了该方法能有效的增强了尾焰的逼真性。In order to enhance the verisimilitude of missile plume, an effective simulation method was provided. Firstly, trigonometric function was adopted to describe the outline of missile plume. Secondly, particle system was used to simulate the irregular and dynamic figure. Thirdly, the tangent plane of the particle velocity vector was placed in ring surrounding the X axis, which was a texture mapping plane. The problem that 2D texture can＇t view properly in 3D scene was solved by this technology. Fourthly, particle fire disc and velocity segmentation were introduced, which enhanced the hiberarchy of missile plume. Lastly, the round pattern was used as particle mapping texture, and a color mapping method from the color trait of missile plume burning was provided. OpenGL platform was used to implement this method. At the same time comparison with other methods was made, and this method can effectively enhance the verisimilitude of missile plume.

关 键 词：粒子系统 纹理映射 导弹尾焰 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]